diff --git a/CHANGELOG.md b/CHANGELOG.md
index 28855c766f..5d50c447e3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -40,6 +40,12 @@ Bottom level categories:
 
 ## Unreleased
 
+### Changes
+
+#### General
+
+* Implement `Default` for `CompositeAlphaMode`
+
 ### Bug Fixes
 
 #### General
diff --git a/wgpu-types/src/lib.rs b/wgpu-types/src/lib.rs
index a7bd3d0d90..86cb02c71b 100644
--- a/wgpu-types/src/lib.rs
+++ b/wgpu-types/src/lib.rs
@@ -3824,6 +3824,12 @@ pub enum CompositeAlphaMode {
     Inherit = 4,
 }
 
+impl Default for CompositeAlphaMode {
+    fn default() -> Self {
+        Self::Auto
+    }
+}
+
 bitflags::bitflags! {
     /// Different ways that you can use a texture.
     ///